View source for Turbulent kinetic energy dissipation

{{DefineConcept
|parameter_name=<math>\varepsilon</math>
|description=Viscous dissipation rate of turbulent kinetic energy per unit mass
|article_type=Concept
|instrument_type=Velocity point-measurements, Velocity profilers, Shear probes
}}
The dissipation rate, for short, is main quantity ATOMIX seeks to improve. It is the irreversible rate of dissipation of the turbulence kinetic energy through viscous friction. <math>\varepsilon</math> is related to the sum of variances of the turbulent rate of strain and the rate of shear, and can be approximated using any one component assuming isotropy.